You hereby grant Facebook an irrevocable, perpetual, non-exclusive, transferable, fully paid, worldwide license (with the right to sublicense) to (a) use, copy, publish, stream, store, retain, publicly perform or display, transmit, scan, reformat, modify, edit, frame, translate, excerpt, adapt, create derivative works and distribute (through multiple tiers), any User Content you (i) Post on or in connection with the Facebook Service or the promotion thereof subject only to your privacy settings or (ii) enable a user to Post, including by offering a Share Link on your website and (b) to use your name, likeness and image for any purpose, including commercial or advertising, each of (a) and (b) on or in connection with the Facebook Service or the promotion thereof. [Source]

What this change to the terms of service means is that even if you deactivate your account Facebook won't delete your data. Understandably this has created uproar across the blogosphere and has even led to this response from CEO Mark Zuckerberg on the Facebook blog:

Our philosophy is that people own their information and control who they share it with. . . . One of the questions about our new terms of use is whether Facebook can use this information forever. When a person shares something like a message with a friend, two copies of that information are created—one in the person’s sent messages box and the other in their friend’s inbox. Even if the person deactivates their account, their friend still has a copy of that message. We think this is the right way for Facebook to work, and it is consistent with how other services like email work. One of the reasons we updated our terms was to make this more clear.

In reality, we wouldn’t share your information in a way you wouldn’t want. The trust you place in us as a safe place to share information is the most important part of what makes Facebook work. . . .

Still, the interesting thing about this change in our terms is that it highlights the importance of these issues and their complexity. People want full ownership and control of their information so they can turn off access to it at any time. At the same time, people also want to be able to bring the information others have shared with them—like email addresses, phone numbers, photos and so on—to other services and grant those services access to those people’s information. These two positions are at odds with each other. There is no system today that enables me to share my email address with you and then simultaneously lets me control who you share it with and also lets you control what services you share it with. [Source]

What do you think about this, are you concerned about the control Facebook has over your data?